Specifying maxIdleInterval sets the maximum time in seconds Arbortext Publishing Engine allows an Arbortext PE Unterprozess to be idle. If an Arbortext PE Unterprozess is idle for the specified time, it's terminated.

The maxIdleInterval value only applies if maxSubprocesses is greater than minSubprocesses and there are more Arbortext PE Unterprozesse running than the number specified by minSubprocesses.